**The first: **Private void Button1_Click(object sender, system.eventargs e)    {       The Response. Redirect (Request. Url. The ToString ()); }

**The second: **Private void Button2_Click(object sender, system.eventargs e)    {       Response. Write (”       < Script language = javascript> Window. The location. Href = document. The URL;       < / script>” ); }

**The third: **Private void Button3_Click(object sender, system.eventargs e)    {       The Response. AddHeader (” Refresh ”, “0”); }

**Fourth: **Private void Button6_Click(object sender, system.eventargs e)    {       // there seems to be something wrong?       / / Response. Write (”       < Script language = javascript> Window. The location. Reload ();       < / script>” ); }

**Fifth :(need to replace < >) **< Script> < ! — At 3:00 var limit = "" If (document. Images) {       Var parselimit = limit. The split (” : ”) parselimit = parselimit [0] * 60 + parselimit [1] * 1 } The function beginrefresh () {       If (! Document.images)returnif (parselimit==1)window.location.reload()else       {               Parselimit -=1curmin= math.floor (parselimit/60)cursec=parselimit% 60if (curmin! =0)curtime=curmin+” minutes “+cursec+” re-brush this page after seconds!” Elsecurtime =cursec+ “rebrush this page in seconds!” Window. The status = curtimesetTimeout (beginrefresh ”()”, 1000)       } } Window. The style = “Z - INDEX: 102; LEFT: 408 px; POSITION: absolute; TOP: 232 px “ms_positioning =” text2D > "" < P> < FONT size = “3” > Automatic page refresh < / FONT> < / P> < / DIV>

**Sixth: **< Meta HTTP - equiv = “refresh” content = “300; Url = target. HTML ”>